Auto merge of #57379 - petrochenkov:parsrecov, r=estebank

tests: Do not use `-Z parse-only`, continue compilation to test recovery

Make tests closer to reality!

The next step will be enabling `-Z continue-parse-after-error` by default and looking at the regressions.

A few instances of `-Z parse-only` are kept when it's appropriate, see e.g `ui/impl-trait/impl-trait-plus-priority.rs`, which tests mostly semantically wrong code and would generate too much useless noise if allowed to continue.

Author: bors

src/etc/generate-keyword-tests.py

@@ -16,8 +16,6 @@
 
 
 template = """
-// compile-flags: -Z parse-only
-
 // This file was auto-generated using 'src/etc/generate-keyword-tests.py %s'
 
 fn main() {

src/libsyntax/feature_gate.rs

@@ -1543,7 +1543,6 @@ impl<'a> Visitor<'a> for PostExpansionVisitor<'a> {
 
     fn visit_item(&mut self, i: &'a ast::Item) {
         match i.node {
-            ast::ItemKind::Static(..) |
             ast::ItemKind::Const(_,_) => {
                 if i.ident.name == "_" {
                     gate_feature_post!(&self, underscore_const_names, i.span,

src/test/rustfix/tuple-float-index.fixed

@@ -1,5 +1,3 @@
-// compile-flags: -Z parse-only
-
 fn main () {
     ((1, (2, 3)).1).1;
 }

src/test/rustfix/tuple-float-index.rs

@@ -1,5 +1,3 @@
-// compile-flags: -Z parse-only
-
 fn main () {
     (1, (2, 3)).1.1;
 }

src/test/ui/mod/mod_file_disambig.rs

@@ -1,5 +1,3 @@
-// compile-flags: -Z parse-only
-
 mod mod_file_disambig_aux; //~ ERROR file for module `mod_file_disambig_aux` found at both
 
 fn main() {

src/test/ui/mod/mod_file_disambig.stderr

@@ -1,5 +1,5 @@
 error[E0584]: file for module `mod_file_disambig_aux` found at both mod_file_disambig_aux.rs and mod_file_disambig_aux/mod.rs
-  --> $DIR/mod_file_disambig.rs:3:5
+  --> $DIR/mod_file_disambig.rs:1:5
    |
 LL | mod mod_file_disambig_aux; //~ ERROR file for module `mod_file_disambig_aux` found at both
    |     ^^^^^^^^^^^^^^^^^^^^^

src/test/ui/mut/mut-ref.rs

@@ -1,5 +1,3 @@
-// compile-flags: -Z parse-only
-
 fn main() {
     let mut ref x = 10; //~ ERROR the order of `mut` and `ref` is incorrect
     let ref mut y = 11;

src/test/ui/mut/mut-ref.stderr

@@ -1,5 +1,5 @@
 error: the order of `mut` and `ref` is incorrect
-  --> $DIR/mut-ref.rs:4:9
+  --> $DIR/mut-ref.rs:2:9
    |
 LL |     let mut ref x = 10; //~ ERROR the order of `mut` and `ref` is incorrect
    |         ^^^^^^^ help: try switching the order: `ref mut`

src/test/ui/parser/ascii-only-character-escape.rs

@@ -1,4 +1,4 @@
-// compile-flags: -Z parse-only -Z continue-parse-after-error
+// compile-flags: -Z continue-parse-after-error
 
 fn main() {
     let x = "\x80"; //~ ERROR may only be used

src/test/ui/parser/assoc-oddities-1.rs

@@ -1,6 +1,6 @@
 // compile-flags: -Z parse-only
 
-fn that_odd_parse() {
+fn main() {
     // following lines below parse and must not fail
     x = if c { a } else { b }();
     x = if true { 1 } else { 0 } as *mut _;